---------- Forwarded message ---------- Date: Wed, 27 Jun 2007 15:58:15 -0700 From: Ed Phillips <evp@xxxxxxxxxxx> To: Tesla list <tesla@xxxxxxxxxx> Subject: Re: audio oscillator (fwd) What's the correct email address? I'll send you a National Semiconductor OP AMP application note with several good audio oscillator circuits suitable for battery power. Very simple. Ed